300-420 cisco

300-420 cisco

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Copyright (c) 1986-2005 by Cisco Systems, Inc. Compiled Wed 12-Oct-05 22:05 by pt_team advertisement version: 2 ------------------------------------------------------------------ We have covered some important ground over the last three days. Ensure you read over the notes again, making your own notes and highlighting important learning points which you will find makeup questions in the actual exam. The challenge labs throughout this book are based on previous labs already configured so we don’t provide solutions. Access Mode VLAN: 1 (default) Trunking Native Mode VLAN: 1 (default) Voice VLAN: none DNS server: 8.8.8.8 Domain name: Network+ Lease time: 30 days Router(config)#access-list 1 permit host 172.16.1.1 Auto Negotiation - not supported ACL Rule 7 – You can reuse the same ACL. S 192.168.4.0/24 is directly connected, Serial0/0/1 Option 129: call server IP address Device ID Local Intrfce Holdtme Capability Platform Port ID Switch Gig 0/1 121 S 2960 Gig 0/1 　　Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Platform: cisco C1841, Capabilities: Router S 192.168.4.0/24 is directly connected, Serial0/0/1 summary-address Summary-address redistribution information timers OSPF timers information PC>ping 192.168.1.1 Enable SSH Because routing protocols have different characteristics, they differ in their scalability and performance. Some routing protocols are suitable only for small networks, while others may be used in small, medium, and large networks. 8 0004.c16f.8742 DYNAMIC Fa0/5 value of 5. If another device was synchronized to the local router, it would reflect a stratum of 7 and so forth. The second command that is used to validate the NTP configuration is the show ntp status command, the output of which is illustrated below: 3.5Compare and contrast static routing and dynamic routing Router#show ip access-lists Standard IP access list 1 D 80.0.0.0/8 [90/281600] via 10.1.1.2, 00:02:02, Ethernet0/0.1 O E2 80.1.0.0/16 [110/20] via 10.1.1.2, 00:00:14, Ethernet0/0.1 dot1q - Interface uses only 802.1q trunking encapsulation when trunking Router(config)#ip route 192.168.1.0 255.255.255.0 172.16.1.2 Gig0/1, Gig0/2 System Capabilities: B Enabled Capabilities: B Aging Time : 0 mins Switch CAM tables are storage locations that contain lists of known MAC addresses on physical ports, as well as their VLAN parameters. Dynamically learned contents of the switch CAM table, or MAC address table, can be viewed by issuing the show mac-address-table dynamic command, as illustrated in the following output: RouterA(config)#ip route network prefix mask {address | interface} [distance] Configuring the Port Security Violation Action Shutdown (default) Restrict The port security feature is designed to protect the switched LAN from two primary methods of attack. These attack methods, which will be described in the following sections, are: Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP RouterA#show ip route 10.1.1.1 Routing entry for 10.0.0.0/10 2.7.fErr-disable recovery This packet is sourced by the DHCP server and broadcasted on the network; it also contains some extra fields as seen in the Figure 14.8 above: In Cisco IOS software, all sources of routing information are assigned a default administrative distance value. This default value is an integer between Is the VLAN blocked on the trunk? Extended numbered ACLs allow far more granularity but can be trickier to configure and troubleshoot. They can filter a destination or source IP address or network, a protocol type, and a port number. The numbers you can use to configure extended ACLs are 100 to 199, inclusive. In Table 11.1 below, you will see that Cisco routers prefer static routes over all of the routes learned via routing protocols (e.g., EIGRP, BGP, IGRP, OSPF, IS-IS, etc.). This is important to remember as we discuss floating static routes. Switch (config-if)#switchport trunk encapsulation ? Hold-down timers: If a metric for a particular route keeps getting worse,300-420 cisco, updates for that route are not accepted for a delayed period. Router(config)#int FastEthernet0/0 * - candidate default, U - per-user static route, o - ODR illustrated in the following output: Switch#ping 192.168.1.1 ‹ test connection from switch to PC Type escape sequence to abort. In addition to using the show ipv6 route command, the show ipv6 static [prefix] [detail] command can also be used to view detailed information about all or just specified static routes. The following output illustrates how to use this command: Always add a new switch in Client mode (but check the above note on the configuration revision number) same view of and agree on optimal routes. When convergence takes a long time to occur, intermittent packet loss and loss of connectivity may be experienced between remote networks. In addition to these problems, slow convergence can result in network routing loops and outright network outages. Please ensure that you type out ALL of these commands onto a router. There is no way on Earth that you will remember them by reading them on a page. Try out the configurations, make mistakes, post questions, break it on purpose (not on a live network), and fix it again. labels Display labels for IPv4 NLRI specific information C 172.16.0.0/16 is directly connected, FastEthernet0/0 Ease of use Flexibility An important routing protocol design and configuration consideration is to Router#debug ip rip R2(config-if)#ipv6 address 2001:aaaa:bbbb:cccc::2/64 R2(config-if)#no shut 4.3.dTFTP, DNS, and gateway options ACL rules Wildcard masks ACL configuration The manual configuration of a trunk is performed by issuing the switchport mode trunk interface configuration command on the desired switch port. This command forces the port into a permanent (static) trunking mode. The following configuration output shows how to configure a port statically as a trunk port: R1#show ip route Switch(config-if)#switchport mode trunk Read today’s lesson notes (below) Review yesterday’s lesson notes and labs Complete today’s labs Your choices as a network administrator are to use dynamic routing protocols on your network or static routing, which is where you manually add each route for your network onto each router. hold down, and flush, which were already discussed. Switch1(config)# Incoming update filter list for all interfaces is not set Sending updates every 30 seconds, next due in 24 seconds Invalid after 180 seconds, hold down 180, flushed after 240 Redistributing: rip 01:26:59: RIP: sending v1 update to 255.255.255.255 via Loopback0 Switch-1(config)#vlan 10 Administrative private-vlan trunk private VLANs: none Operational private-vlan: none R2#ping 2001:aaaa:bbbb:dddd::1 Type escape sequence to abort. Router(config)#int FastEthernet0/0 security is enabled. Switch-1(config-if)#no shutdown Switch-1(config-if)#exit 3.5Compare and contrast static routing and dynamic routing Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2007 by Cisco Systems, Inc. Platform: cisco 7960, Capabilities: Host Phone 2.Ping across the Serial link to ensure that it is working. RouterA(config)#ip route 10.0.0.0 255.192.0.0 Serial0/1/0 RouterA(config)#exit * - candidate default, U - per-user static route, o - ODR, P - periodic downloaded static route pagp-flap Disabled port-mode-failure Disabled TOT/TAT/TNT: 802.1Q/802.1Q/802.1Q <1-15> Last Line number Take today’s exam at passhot.com Spend 15 minutes on subnetting.org Matching subnet 192.200.1.0 255.255.255.192 would require the following: %SYS-5-CONFIG_I: Configured from console by console Entry address(es): 255. If it was 255, you would add 0. Take a look at the examples below: Path Length Success rate is 80 percent (4/5), round-trip min/avg/max = 31/31/32 ms Switch# R1(config)#ip route 192.168.4.0 255.255.255.0 Serial0/0/1 The following output illustrates how to configure a switch port to dynamically learn and secure up to two MAC addresses on interface GigabitEthernet0/2: 1.You will need to add IP addresses on each PC. Feel free to choose your own, as long as they are on the same subnet! Manual (Static) Trunk Configuration ACL Rule 2 – The lines are processed top-down. Switch-1(config)#interface vlan 30 Minimum = 0ms, Maximum = 0ms, Average = 0ms 5.Issue the show line command and note how many vty lines you have. Then issue a username and password to be entered by users telnetting in. one of the links is actually a FastEthernet link while the other is actually a GigabitEthernet link is irrelevant to the routing protocol. Switch(config-line)#login local Switch(config-line)#exit Switch (config-if)#switchport trunk encapsulation ? Verifying the Port Security Violation Action Path length Reliability %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan2, changed state to up Switch(config-if)#^Z ‹ press Ctrl+Z keys Distance Vector routing protocols traditionally use a one-dimensional vector when determining the most optimal path(s) through the network, while Link State routing protocols use the Shortest Path First (SPF) when determining the most optimal path(s) through the network. Before delving into the specifics of these two classes of routing protocols, we will first take a look at vectors, as well as at the elusive SPF algorithm.

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